FAN54300 Datasheet, PDF (17/43 Pages) Fairchild Semiconductor – USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator

VIN Charger Characteristics
Unless otherwise specified, circuit of Figure 1, VOREG = 4.2 V, VIN = 5.0 V, and TA=25°C.
93
91
89
87
85
4.5 VIN
83
5.0 VIN
6.0 VIN
9.0 VIN
81
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
Battery Voltage VBAT (V)
Figure 20. Charger Efficiency, IOCHARGE=950 mA
94
91
88
85
82
4.5 VIN
79
5.0 VIN
6.0 VIN
9.0 VIN
76
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
Battery Voltage VBAT (V)
Figure 21. Charger Efficiency, IOCHARGE=1550 mA
1,800
1,500
1,200
900
600
300
0
4
5
6
7
VIN Input Voltage (V)
-30C
+25C
+85C
8
9
15
12
9
6
3
0
2.0
2.5
3.0
3.5
4.0
Battery Voltage, VBAT (V)
-30C
+25C
+85C
4.5
5.0
Figure 22. VIN Current in High-Impedance Mode, VBAT=3.6 V Figure 23. Battery Current in High-Impedance Mode,
VBUS=Open, VIN=Open
© 2010 Fairchild Semiconductor Corporation
FAN54300 • Rev. 1.0.4
17
www.fairchildsemi.com